"Skyfall" is a theatrical film in the same way that its director, Sam Mendes, is a theatrical filmmaker. That is, its approach to organizing space for an audience (the camera lens) is noticeably stagey. I mean that in a "value-neutral" way. I just mean the frame is frequently used as a proscenium and the images are action-tableaux deployed for a crowd -- whether it's the designated audience surrogates in the movie (bystanders or designated dramatis personae), or the viewers in the seats with the cup-holders. That's not to say it's uncinematic (it's photographed by the great Roger Deakins!), but many of the set-pieces in "Skyfall" are conceived and presented as staged performance pieces.